<input-mobile>
    <div class="input-mobile">
        <input placeholder="请输入手机号" />
        <button>发送验证码</button>
    </div>

    <style>
        .input-mobile {
            display: flex;
            flex-direction: row;
            justify-content: space-between;
            padding: 8px 8px 8px 16px;
            border: 1px solid #e5e5e5;
            border-radius: 6px;
        }
        .input-mobile input {
            width: calc(100% - 120px);
            border: none;
            background: none;
            outline: none;
            font-size: 14px;
        }
        .input-mobile button {
            padding: 8px 15px;
            border: none;
            border-radius: 4px;
            outline: none;
            background: #ebefff;
            white-space: nowrap;
            color: #224ee5;
            font-size: 14px;
        }
    </style>
</input-mobile>